CN110237679A - Aldehyde device is removed with light-catalysed based on porous absorption - Google Patents
Aldehyde device is removed with light-catalysed based on porous absorption Download PDFInfo
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- CN110237679A CN110237679A CN201910450742.7A CN201910450742A CN110237679A CN 110237679 A CN110237679 A CN 110237679A CN 201910450742 A CN201910450742 A CN 201910450742A CN 110237679 A CN110237679 A CN 110237679A
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- 241001330002 Bambuseae Species 0.000 claims description 14
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 14
- 239000011425 bamboo Substances 0.000 claims description 14
- 230000003197 catalytic effect Effects 0.000 claims description 12
- FOIXSVOLVBLSDH-UHFFFAOYSA-N Silver ion Chemical compound [Ag+] FOIXSVOLVBLSDH-UHFFFAOYSA-N 0.000 claims description 10
- 238000006555 catalytic reaction Methods 0.000 claims description 8
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- 238000002803 maceration Methods 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 5
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 4
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- 238000011068 loading method Methods 0.000 claims description 4
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- 229920000742 Cotton Polymers 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 229910052724 xenon Inorganic materials 0.000 claims description 3
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 2
- 239000004408 titanium dioxide Substances 0.000 claims description 2
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- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 abstract description 90
- 239000007789 gas Substances 0.000 abstract description 5
- 230000000505 pernicious effect Effects 0.000 abstract description 4
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 abstract 1
- 229910052709 silver Inorganic materials 0.000 abstract 1
- 239000004332 silver Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 description 13
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 7
- 238000007254 oxidation reaction Methods 0.000 description 7
- 238000000746 purification Methods 0.000 description 7
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 6
- 239000000428 dust Substances 0.000 description 6
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 6
- 230000003647 oxidation Effects 0.000 description 6
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- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 4
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- VZSRBBMJRBPUNF-UHFFFAOYSA-N 2-(2,3-dihydro-1H-inden-2-ylamino)-N-[3-oxo-3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propyl]pyrimidine-5-carboxamide Chemical compound C1C(CC2=CC=CC=C12)NC1=NC=C(C=N1)C(=O)NCCC(N1CC2=C(CC1)NN=N2)=O VZSRBBMJRBPUNF-UHFFFAOYSA-N 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 2
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- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
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- 239000008367 deionised water Substances 0.000 description 2
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- 238000007667 floating Methods 0.000 description 2
- 239000011859 microparticle Substances 0.000 description 2
- 239000010970 precious metal Substances 0.000 description 2
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- 229920000049 Carbon (fiber) Polymers 0.000 description 1
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- 241001464837 Viridiplantae Species 0.000 description 1
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- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
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- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
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- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
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- 239000002127 nanobelt Substances 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 239000011941 photocatalyst Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- HTRJDXQPCKIFIU-UHFFFAOYSA-N silver;ethanol;nitrate Chemical compound [Ag+].CCO.[O-][N+]([O-])=O HTRJDXQPCKIFIU-UHFFFAOYSA-N 0.000 description 1
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 208000024891 symptom Diseases 0.000 description 1
- 238000009210 therapy by ultrasound Methods 0.000 description 1
- 239000010457 zeolite Substances 0.000 description 1
Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L9/00—Disinfection, sterilisation or deodorisation of air
- A61L9/16—Disinfection, sterilisation or deodorisation of air using physical phenomena
- A61L9/22—Ionisation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0027—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0027—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions
- B01D46/0028—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions provided with antibacterial or antifungal means
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B01D46/0027—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions
- B01D46/0036—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions by adsorption or absorption
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/24—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
- B01D46/2403—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies characterised by the physical shape or structure of the filtering element
- B01D46/2411—Filter cartridges
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/56—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition
- B01D46/62—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in series
- B01D46/64—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in series arranged concentrically or coaxially
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/38—Removing components of undefined structure
- B01D53/44—Organic components
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- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/54—Nitrogen compounds
- B01D53/58—Ammonia
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- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/72—Organic compounds not provided for in groups B01D53/48 - B01D53/70, e.g. hydrocarbons
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- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
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- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/81—Solid phase processes
- B01D53/82—Solid phase processes with stationary reactants
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- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/8668—Removing organic compounds not provided for in B01D53/8603 - B01D53/8665
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- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/16—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/20—Vanadium, niobium or tantalum
- B01J23/22—Vanadium
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- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/30—Catalysts, in general, characterised by their form or physical properties characterised by their physical properties
- B01J35/39—Photocatalytic properties
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01D2255/802—Photocatalytic
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- Life Sciences & Earth Sciences (AREA)
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Abstract
The invention discloses one kind to remove aldehyde device with light-catalysed based on porous absorption, and including outer ring assembl and inner ring assembly that axial line coincides, inner ring assembly is sleeved in outer ring assembl；Light source (6) are set in the annular space that the inner surface of outer ring assembl and the outer surface of inner ring assembly are enclosed；Outer ring assembl and inner ring assembly are fixedly linked with light source (6).The outer ring assembl is by successively folded connected primary filter layer circle (1), HEPA filter layer circle (2), active carbon layer circle (3), load silver bamboo-carbon layer circle (4), the middle rank filter layer circle (5) of setting forms from outside to inside；The inner ring assembly by from outside to inside successively fold set connected supported porous filter layer circle (7), active carbon cloth filter layer circle (8) forms.Aldehyde device is removed using this, can effectively remove the pernicious gases such as formaldehyde.
Description
Technical field
The present invention relates to air purification fields, and in particular to a kind of to be adsorbed with photocatalysis removal formaldehyde based on porous except aldehyde
Device and its application method.
Background technique
Formaldehyde is a kind of indoor polluted gas, generates serious harm to human health, has been cited as first kind carcinogen.
The removal of formaldehyde has become the top priority of air pollution treatment.Studies have shown that the long-term low concentration Formaldehyde Exposed of human body, it may appear that
The symptoms such as dizzy, out of strength, immunity reduction；Sucking high-concentration formaldehyde can cause human body blurred vision, hoarseness, it is uncomfortable in chest, hold
Continuous cough even stupor, death.The removal of formaldehyde has many methods, such as absorbs formaldehyde using green plants, using active carbon, divides
The porous adsorbing materials such as son sieve absorb formaldehyde, and formaldehyde can also be removed in the way of ventilation, but are more net using air
The mode for changing device filtering and fresh air system exchange removes formaldehyde.However, there are also of floating since pollution air is other than formaldehyde
Grain, dust, other organic pollutant molecules, germ especially fungal spore, virus etc. cause current formaldehyde minimizing technology to exist
Except aldehyde is ineffective, the problems such as supersaturated absorption, secondary pollution, pollutant interfere with each other.
Interior is numerous except the method for aldehyde, and other than ventilation and plant purification method, catalytic oxidation and absorption method are obtained
Research extensively.Catalytic oxidation mainly has precious metal catalyst oxidation and two kinds of manganese dioxide catalysis oxidation.Such as
It is carrier loaded superfine Ti O that CN201510659000.7, which is described with diatomite powder granule,2The composite construction material of nanobelt
Material has removes aldehyde effect well.CN107866216A, CN108940265A etc. describe MnO2And its composite catalyzing material is used
In room temperature catalytic oxidation formaldehyde.Absorption method is to utilize adsorbent material such as active carbon, activated alumina, zeolite molecular sieve, active carbon
Fiber, aeroge etc., wherein again more extensive with active carbon purposes.It is to be understood that precious metal catalyst oxidizing process is at high cost, no
Suitable to promote and apply, activated carbon surface and formaldehyde associativity are poor, and adsorption capacity is low, easily saturation or generation secondary pollution, restrict
Active carbon is except the application in aldehyde technology and device.According to the analysis, monotechnics are can not thoroughly to remove formaldehyde, and use a variety of
Technology is compound, and photocatalysis and adsorption combined, photocatalysis and plasma combination, catalysis oxidation and plasma combination carry out echelon
Or removing is the complete removing that can be able to achieve the pernicious gases such as formaldehyde by several times.
In recent years, has the more report except aldehyde device.As 108619854 A of CN, CN207478245U,
CN108554167A、2013107138592、2016207387325、CN207654928U、CN207324509U、
Many kinds of many patent disclosures such as CN107519738A, CN107313366A, CN108246007A efficiently remove formaldehyde plant, principle
Have porous absorption except aldehyde, biology removes aldehyde, also there is photocatalytic-oxidation to eliminate aldehyde, mainly change HEPA filter layer, activated carbon filter layer,
The frame modes such as Photocatalyst sterilization, deodorizing layer efficiently remove aldehyde to realize.But these are excessively complicated except aldehyde apparatus structure, and deposit
Windage it is big, except aldehyde process by other pollutant effects the problems such as, restrict except aldehyde process and air cleaning.
Summary of the invention
The technical problem to be solved in the present invention is to provide one kind to remove aldehyde device with light-catalysed based on porous absorption, can have
The pernicious gases such as effect removing formaldehyde.
In order to solve the above technical problem, the present invention provides one kind to remove aldehyde device, packet with light-catalysed based on porous absorption
The outer ring assembl and inner ring assembly that axial line coincides are included, the inner ring assembly is sleeved in outer ring assembl；
Light source is set in the annular space that the inner surface of outer ring assembl and the outer surface of inner ring assembly are enclosed；Institute
It states outer ring assembl and inner ring assembly is fixedly linked with light source.
As of the invention based on porous absorption and the light-catalysed improvement except aldehyde device:
The outer ring assembl sets connected primary filter layer circle, HEPA filter layer circle, active carbon by successively folding from outside to inside
Layer circle carries silver-colored bamboo-carbon layer circle, intermediate filter layer circle composition；
The inner ring assembly sets connected supported porous filter layer circle, active carbon cloth filter layer circle by successively folding from outside to inside
Composition；
In the annular (annulus that the inner surface of intermediate filter layer circle and the outer surface of supported porous filter layer circle are enclosed
Shape) light source is set in space；
The middle rank filter layer circle, supported porous filter layer circle are fixedly linked with light source.
As of the invention based on porous absorption and the light-catalysed further improvement except aldehyde device:
The supported porous filter layer circle (7) using layer stephanoporate block materials load visible light catalytic material, it is described can
Light-exposed catalysis material is titanium dioxide and titania-doped, bismuth tungstate, pucherite.
As of the invention based on porous absorption and the light-catalysed further improvement except aldehyde device:
Layer stephanoporate block materials load catalysis material the preparation method comprises the following steps: 15~25g (preferably 20g) visible light is urged
Change material to be added into 100g deionized water, is prepared into maceration extract after adding the hydrochloric acid solution mixing of the 0.01M of (7 ± 1) mL；
The maceration extract is mixed with 100g layer stephanoporate block materials, impregnation 80~120 minutes (in shaking table
Middle room temperature shakes 80~120 minutes), and it is ultrasonically treated (5 ± 1) minute, it filters, gained filtration cakes torrefaction (60 DEG C of dryings to constant weight),
Obtain layer stephanoporate block materials load visible light catalytic material (layer stephanoporate block materials load catalysis material).
Layer stephanoporate block materials are to implement according to ZL 201410188449.5 " preparation method of layer stephanoporate silica "
Example 1-1 is prepared.
Layer stephanoporate block materials load catalysis material, are with layer stephanoporate block materials for carrier loaded photocatalysis material
Material is prepared, and formaldehyde and catalysis material degradation of formaldehyde is captured by porous silica, to efficiently remove formaldehyde.
As of the invention based on porous absorption and the light-catalysed further improvement except aldehyde device:
The primary filter layer circle (1) selects material of the filtering accuracy at 5~10 microns, such as PP material；For filtering
The bulky grains suspended matter such as hair, dust；
The HEPA filter layer circle (2) selects the material that can filter 0.3 μm of micron-sized molecule, and for example, H11 grades
High efficiency filter material, for keeping out pathogenic bacteria；
The active carbon layer circle (3) selects active carbon, for example, high quality active carbon particle, the nuisances such as adsorbable formaldehyde
Matter effectively removes the peculiar smell in air；
The Activated Bamboo for carrying silver-colored bamboo-carbon layer circle (4) and selecting loading nano silvery or silver ion；
The preparation method of the Activated Bamboo of the loading nano silvery or silver ion is routine techniques, and Activated Bamboo object can be used
Reason dip loading nano silver or silver ion are prepared, and are mainly used for degerming, the pollutants such as removal formaldehyde, ammonia, benzene, TVOC can
Pure oxygen anion is discharged, is guaranteed with fresh air；
The middle rank filter layer circle (5) selects filter cotton, for by active carbon layer circle (3), carry silver-colored bamboo-carbon layer circle (4),
It is for re-filtering that HEPA filter layer circle (2) fails the ultrafine dust stopped；
The active carbon cloth filter layer circle (8) selects active carbon cloth (active carbon cloth filter layer), be mainly used for smoke removing,
Microparticle and Formaldehyde decomposition product, high-efficient purification air.
As of the invention based on porous absorption and the light-catalysed further improvement except aldehyde device:
The light source (6) is ultraviolet light, xenon lamp, LED light, fluorescent lamp.
Of the invention removes aldehyde device with light-catalysed based on porous absorption, has following technical advantage:
1, except 360 degree of aldehyde device air inlets, seven layers of filtration, purification are realized and efficiently remove aldehyde.
2, light source can excite the photochemical catalyst in supported porous filter layer circle；Contaminated air pass through each layer respectively and
Outflow is to realize purification, while eliminating formaldehyde, moreover it is possible to remove the particle, dust, germ floated in air, reach net
Change the purpose of air.
3, it using photocatalysis and adsorption combined, carries out echelon or removes by several times, realize the substantially complete of the pernicious gases such as formaldehyde
Full removing.
Detailed description of the invention
Specific embodiments of the present invention will be described in further detail with reference to the accompanying drawing.
Fig. 1 is porous absorption provided by the invention and the light-catalysed appearance schematic diagram except aldehyde device；
Fig. 2 is the diagrammatic cross-section of A-A in Fig. 1；
Fig. 3 be it is provided by the invention except aldehyde device simulation storehouse in Degradation Formaldehyde rate with the time change curve.
Specific embodiment
The present invention is described further combined with specific embodiments below, but protection scope of the present invention is not limited in
This:
Embodiment 1, it is a kind of based on porous absorption and it is light-catalysed remove aldehyde device, as illustrated in figs. 1 and 2, including axial line
The outer ring assembl and inner ring assembly to coincide；Inner ring assembly is sleeved in outer ring assembl, and the outer ring assembl and inner ring assembly are equal
For round wreath.
Light source is set in the annular space that the inner surface of outer ring assembl and the outer surface of inner ring assembly are enclosed
6；Outer ring assembl and inner ring assembly are fixedly linked with light source 6；
It is specific as follows:
Outer ring assembl sets connected primary filter layer circle 1, HEPA filter layer circle 2, active carbon layer by successively folding from outside to inside
Circle 3 carries silver-colored bamboo-carbon layer circle 4, intermediate 5 composition of filter layer circle；That is, above-mentioned 5 successively contact with each other connection；It is settable between any two
The formation of card slot；Consequently facilitating installation and replacement.Notch (such as being made of groove and raised line) is routine techniques, therefore
It will not be described in full detail in the present invention.It is above-mentioned can also rely between any two conventional screw structural be connected.
Inner ring assembly sets connected supported porous filter layer circle 7,8 groups of active carbon cloth filter layer circle by successively folding from outside to inside
At；That is, both above-mentioned connection that contacts with each other；Connection is realized in the formation of settable card slot.
In the circular ring shape that the inner surface of intermediate filter layer circle 5 and the outer surface of supported porous filter layer circle 7 are enclosed
Light source 6 is set in space；The light source 6 can be selected following any: ultraviolet light, xenon lamp, LED light, fluorescent lamp.
The inner surface of intermediate filter layer circle 5 is fixedly linked with light source 6, the outer surface of supported porous filter layer circle 7 and light source 6
It is fixedly linked.
Supported porous filter layer circle 7 is using layer stephanoporate block materials load bismuth tungstate (layer stephanoporate block materials load
Visible light catalytic material), preparation method are as follows:
Layer stephanoporate block materials are to implement according to ZL 201410188449.5 " preparation method of layer stephanoporate silica "
Example 1-1 is prepared；Visible light catalytic material selects bismuth tungstate；
20g visible light catalytic material bismuth tungstate is added into 100g deionized water, the hydrochloric acid of the 0.01M of 7mL is added
Maceration extract is prepared into after solution mixing；
Maceration extract is mixed with 100g layer stephanoporate block materials, room temperature shakes 100 minutes in shaking table, to realize
Impregnation；Conventional ultrasonic treatment is carried out again 5 minutes, take solid dry (60 DEG C of dryings to constant weight), obtain layer stephanoporate
Block materials load bismuth tungstate.
Primary filter layer circle 1, HEPA filter layer circle 2, active carbon layer circle 3, intermediate filter layer circle 5, active carbon cloth filter layer
Material used in circle 8 can be obtained by way of regular market purchase:
Primary filter layer circle 1 selects PP of the filtering accuracy at 5~10 microns；It is outstanding for filtering the bulky grains such as hair, dust
Floating object；
HEPA filter layer circle 2 selects the efficient HEPA (High that can filter 0.3 μm of micron-sized molecule
Efficiency particulate air) strainer, for example, H11 grades of high efficiency filter material, for keeping out pathogenic bacteria；
The active carbon layer circle 3 selects active carbon, for example, active carbon particle of high-quality, the nuisances such as adsorbable formaldehyde
Matter effectively removes the peculiar smell in air；
The middle rank filter layer circle 5 selects filter cotton, for filtering active carbon layer circle 3, the silver-colored bamboo-carbon layer circle 4 of load, HEPA
Layer circle 2 fails the ultrafine dust stopped progress middle rank and refilters once；
The active carbon cloth filter layer circle 8 selects active carbon cloth (active carbon cloth filter layer), is mainly used for smoke removing, micro-
Particle and Formaldehyde decomposition product, high-efficient purification air.
The Activated Bamboo that silver-colored bamboo-carbon layer circle 4 selects load silver ion is carried, is negative using conventional Activated Bamboo physical impregnation
Carrying nano silver or silver ion are prepared, and are mainly used for degerming, the pollutants such as removal formaldehyde, ammonia, benzene, TVOC, releasable pure oxygen
Anion guarantees with fresh air；Preparation method specifically:
A, first bamboo charcoal is activated through KOH, obtains Activated Bamboo (this is routine techniques)；
Using the bamboo charcoal of 20~30 mesh as raw material, first KOH is mixed with water according to the mass ratio of 1:1, obtains soak；By bamboo charcoal
It is put into soak and impregnates for 24 hours；The dosage of KOH in bamboo charcoal and soak is 1:1；It is small in 130 DEG C of dryings 24 after immersion
When；Carry out heat preservation activation 1 hour in 800 DEG C in a nitrogen atmosphere again；
B, 100g Activated Bamboo is taken, the silver nitrate ethanol solution 10ml of 6mmol/L is added, is stirred 8h, 300 DEG C of vacuum
Heat treatment 2 hours；Obtain the Activated Bamboo of load silver ion.
In the present invention, it selects shot-like particle as material, such as selects the active carbon layer circle 3 of active carbon, selects load
The silver-colored bamboo-carbon layer circle 4 of the load of the Activated Bamboo of silver ion, the supported porous filtering that bismuth tungstate is loaded using layer stephanoporate block materials
Layer circle 7, can be packed into the grid (diamond shape or matrix pattern) for meeting its Particle size requirements in advance, required annular is then made again；And
Primary filter layer circle 1, HEPA filter layer circle 2, intermediate filter layer circle 5, active carbon cloth filter layer circle 8 can be directly prepared into required ring
Shape.
Experiment 1,
Primary filter layer circle 1 with a thickness of 0.5mm；HEPA filter layer circle 2 with a thickness of 16.5mm；Active carbon layer circle 3
With a thickness of 6mm；Carry silver-colored bamboo-carbon layer circle 4 with a thickness of 13mm；Intermediate filter layer circle 5 with a thickness of 2mm；Supported porous filter layer circle
7 with a thickness of 16mm；Active carbon cloth filter layer circle 8 with a thickness of 0.8~1mm；Light source 6 is DC12V, power 14W, 710LM
White light；The entire height except aldehyde device is about 80cm, and outer diameter (overall diameter) is about 40cm.
Aldehyde device should be removed in actual use with light-catalysed based on porous absorption, will entirely pacify except aldehyde device as filtration core
In shell (drum for having bottom uncovered), spacing is kept between the outer surface and shell of filtration core, in the surface of filtration core
(that is, at air outlet) installs air-introduced machine；Under the action of air-introduced machine, negative pressure is formed in shell, air to be processed is from filtration core
360 degree of air inlets at spacing between outer surface and shell, flow into filtration core, that is, successively pass through primary filter layer circle 1, HEPA
Filter layer circle 2, active carbon layer circle 3 carry silver-colored bamboo-carbon layer circle 4, intermediate filter layer circle 5, light source 6, supported porous filter layer circle 7, live
The upward outlet air from the inner cavity of active carbon cloth filter layer circle 8 after property charcoal cloth filter layer circle 8, to realize the purification of room air.
Air-introduced machine can be made of double wind wheel, and one group of strength air draught forces air to enter filtration core from shell surrounding；Another group
Wind wheel send filtered air to required indoor location by V-type flaring.
It is 3m that 1 above-mentioned apparatus, which is put into volume,3Simulation storehouse in so that in storehouse concentration of formaldehyde control in 10mg/m3,
It opens air-introduced machine and carries out Degradation Formaldehyde, the concentration of formaldehyde detection carried out in a storehouse every ten minutes, and keep a record, wait final storehouse
Interior concentration of formaldehyde stops after no longer declining.After when purification device unlatching 3 is small, Degradation Formaldehyde rate almost no longer changes, maximum drop
Solution rate maintains 90% or so (Fig. 3).
The above list is only a few specific embodiments of the present invention for finally, it should also be noted that.Obviously, this hair
Bright to be not limited to above embodiments, acceptable there are many deformations.Those skilled in the art can be from present disclosure
All deformations for directly exporting or associating, are considered as protection scope of the present invention.
Claims (6)
1. based on porous absorption and light-catalysed removing aldehyde device, it is characterised in that: the outer ring assembl that coincides including axial line and
Inner ring assembly, the inner ring assembly are sleeved in outer ring assembl；
Light source (6) are set in the annular space that the inner surface of outer ring assembl and the outer surface of inner ring assembly are enclosed；Institute
Outer ring assembl and inner ring assembly is stated to be fixedly linked with light source (6).
2. according to claim 1 based on porous absorption and light-catalysed except aldehyde device, it is characterised in that:
The outer ring assembl sets connected primary filter layer circle (1), HEPA filter layer circle (2), activity by successively folding from outside to inside
Layer of charcoal circle (3) carries silver-colored bamboo-carbon layer circle (4), intermediate filter layer circle (5) composition；
The inner ring assembly sets connected supported porous filter layer circle (7), active carbon cloth filter layer circle by successively folding from outside to inside
(8) it forms；
It is empty in the annular that the inner surface of intermediate filter layer circle (5) and the outer surface of supported porous filter layer circle (7) are enclosed
Interior setting light source (6)；
The middle rank filter layer circle (5), supported porous filter layer circle (7) are fixedly linked with light source (6).
3. according to claim 2 based on porous absorption and light-catalysed except aldehyde device, it is characterised in that:
The supported porous filter layer circle (7) loads visible light catalytic material, the visible light using layer stephanoporate block materials
Catalysis material is titanium dioxide and titania-doped, bismuth tungstate, pucherite.
4. according to claim 3 based on porous absorption and light-catalysed except aldehyde device, it is characterised in that:
Layer stephanoporate block materials load visible light catalytic material are as follows: 15~25g visible light catalytic material is added to 100g and goes
Maceration extract is prepared into after in ionized water, adding the hydrochloric acid solution mixing of the 0.01M of (7 ± 1) mL；
The maceration extract is mixed with 100g layer stephanoporate block materials, impregnation 80~120 minutes, then at ultrasound
(5 ± 1) minute is managed, takes solid dry, obtains layer stephanoporate block materials load visible light catalytic material.
5. according to claims 1 to 4 based on porous absorption and light-catalysed except aldehyde device, it is characterised in that:
The primary filter layer circle (1) selects material of the filtering accuracy at 5~10 microns, and the HEPA filter layer circle (2) is selected
The material of 0.3 μm of micron-sized molecule can be filtered, the active carbon layer circle (3) selects active carbon, the silver-colored bamboo-carbon layer of the load
Enclose the Activated Bamboo that (4) select loading nano silvery or silver ion；The middle rank filter layer circle (5) selects filter cotton, the activity
Charcoal cloth filter layer circle (8) selects active carbon cloth.
6. according to claims 1 to 4 based on porous absorption and light-catalysed except aldehyde device, it is characterised in that:
The light source (6) is ultraviolet light, xenon lamp, LED light, fluorescent lamp.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112439268A (en) * | 2020-10-16 | 2021-03-05 | 苏州兔妈妈环保科技有限公司 | Filtering element for filtering gas and purification method |
| CN114768440A (en) * | 2022-04-20 | 2022-07-22 | 温州理工学院 | Dust device for building site environmental protection |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103979547A (en) * | 2014-05-06 | 2014-08-13 | 浙江大学 | Preparation method for hierarchical porous silicon oxide |
| CN206094337U (en) * | 2016-09-20 | 2017-04-12 | 北京华钛高科科技有限公司 | Drum formula photocatalysis room air purifier |
| CN207271057U (en) * | 2017-02-20 | 2018-04-27 | 四川旭航新材料有限公司 | A kind of photocatalytic indoor air purifier |
| CN207445901U (en) * | 2017-10-23 | 2018-06-05 | 淮北师范大学 | A kind of indoor formaldehyde treatment and purification device |
| CN109012162A (en) * | 2018-08-29 | 2018-12-18 | 西北工业大学 | A kind of multistage removal indoor formaldehyde device of band sterilization |
| CN109012756A (en) * | 2018-09-17 | 2018-12-18 | 南京景铄新材料科技有限公司 | A kind of catalysis material and preparation method thereof with high stability |
| CN109078489A (en) * | 2018-08-29 | 2018-12-25 | 西北工业大学 | A kind of indoor air-purification device that rotatable absorption-degradation free of discontinuities is integrated |
-
2019
- 2019-05-28 CN CN201910450742.7A patent/CN110237679A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103979547A (en) * | 2014-05-06 | 2014-08-13 | 浙江大学 | Preparation method for hierarchical porous silicon oxide |
| CN206094337U (en) * | 2016-09-20 | 2017-04-12 | 北京华钛高科科技有限公司 | Drum formula photocatalysis room air purifier |
| CN207271057U (en) * | 2017-02-20 | 2018-04-27 | 四川旭航新材料有限公司 | A kind of photocatalytic indoor air purifier |
| CN207445901U (en) * | 2017-10-23 | 2018-06-05 | 淮北师范大学 | A kind of indoor formaldehyde treatment and purification device |
| CN109012162A (en) * | 2018-08-29 | 2018-12-18 | 西北工业大学 | A kind of multistage removal indoor formaldehyde device of band sterilization |
| CN109078489A (en) * | 2018-08-29 | 2018-12-25 | 西北工业大学 | A kind of indoor air-purification device that rotatable absorption-degradation free of discontinuities is integrated |
| CN109012756A (en) * | 2018-09-17 | 2018-12-18 | 南京景铄新材料科技有限公司 | A kind of catalysis material and preparation method thereof with high stability |
Non-Patent Citations (2)
| Title |
|---|
| 贺格平等主编: "《半导体材料》", 31 August 2018, 冶金工业出版社 * |
| 邹建新等编著: "《钒钛功能材料》", 31 March 2019, 冶金工业出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112439268A (en) * | 2020-10-16 | 2021-03-05 | 苏州兔妈妈环保科技有限公司 | Filtering element for filtering gas and purification method |
| CN114768440A (en) * | 2022-04-20 | 2022-07-22 | 温州理工学院 | Dust device for building site environmental protection |
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